Here are mine, a Custom Ron Cooper Audax bike, usually on 68" gear
My Dads old 1969 Lambert Proffessional, used for TT's and occaisionally stripped for the track. on 72" gear at present. Turns out the frame might be a Holdsworth Typhoon from the fifties.
1960 Holdsworth Monsoon, salvaged from a skip and renovated, currentley on a 61" gear
70's Falcon, my first fixed bike, in bits at the moment for a respray.
My Graham Weigh now taken over from the Lambert for TTs anything between 72" and 88" gear depending on time of year and course.
My latest addition a Specialized Tri-Cross 71" fixed